Using ServiceHost and ChannelFactory

The ServiceHost class gives you access to the WCF hosting infrastructure on the server side, whereas the
ChannelFactory class gives you access to the WCF hosting infrastructure on the client side.

ServiceHost Sample:

using System;
using System.ServiceModel;
using QuickReturns.StockTrading.ExchangeService;
using QuickReturns.StockTrading.ExchangeService.Contracts;

namespace QuickReturns.StockTrading.ExchangeService.Hosts
{
    public class ExchangeServiceHost
    {
        static void Main(string[] args)
        {
            Uri baseAddress =
            new Uri("http://localhost:8080/QuickReturns");
            CustomServiceHost host =
            new CustomServiceHost(typeof(TradeService), baseAddress);
            host.Open();
            Console.WriteLine("Service started: Press Return to exit");
            Console.ReadLine();
        }
    }
    
    public class CustomServiceHost : ServiceHost
    {
        public CustomServiceHost(Type serviceType, params Uri[] baseAddresses)
        : base(serviceType, baseAddresses)
        {
        }
        
        protected override void OnInitialize()
        {
            BasicHttpBinding binding = new BasicHttpBinding();
            AddServiceEndpoint(typeof(ITradeService), binding, "Exchange");
        }
    }
}

ChannelFactory:

using System;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.Runtime.Serialization;
namespace QuickReturns.StockTrading.ExchangeService.Clients
{
    [ServiceContract(Namespace = "http://QuickReturns")]
    interface ITradeService
    {
        [OperationContract()]
        Quote GetQuote(string ticker);
        
        [OperationContract()]
        void PublishQuote(Quote quote);
    }
    
    [DataContract(Namespace = "http://QuickReturns", Name = "Quote")]
    public class Quote
    {
        [DataMember(Name = "Ticker")]
        public string Ticker;
        
        [DataMember(Name = "Bid")]
        public decimal Bid;
        
        [DataMember(Name = "Ask")]
        public decimal Ask;

        [DataMember(Name = "Publisher")]
        public string Publisher;

        [DataMember(Name = "UpdateDateTime")]
        private DateTime UpdateDateTime;
    }
    
    class ExchangeServiceSimpleClient
    {
        static void Main(string[] args)
        {
            EndpointAddress address =
                new EndpointAddress("http://localhost:8080/QuickReturns/Exchange");
            BasicHttpBinding binding = new BasicHttpBinding();
            IChannelFactory<ITradeService> channelFactory =
                new ChannelFactory<ITradeService>(binding);
            ITradeService proxy = channelFactory.CreateChannel(address);
            Quote msftQuote = new Quote();
            msftQuote.Ticker = "MSFT";
            msftQuote.Bid = 30.25M;
            msftQuote.Ask = 32.00M;
            msftQuote.Publisher = "PracticalWCF";
            Quote ibmQuote = new Quote();
            ibmQuote.Ticker = "IBM";
            ibmQuote.Bid = 80.50M;
            ibmQuote.Ask = 81.00M;
            ibmQuote.Publisher = "PracticalWCF";
            proxy.PublishQuote(msftQuote);
            proxy.PublishQuote(ibmQuote);
            Quote result = null;
            result = proxy.GetQuote("MSFT");
            Console.WriteLine("Ticker: {0} Ask: {1} Bid: {2}",
            result.Ticker, result.Ask, result.Bid);
            result = proxy.GetQuote("IBM");
            Console.WriteLine("Ticker: {0} Ask: {1} Bid: {2}",
            result.Ticker, result.Ask, result.Bid);
            try
            {
                result = proxy.GetQuote("ATT");
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            if (result == null)
            {
                Console.WriteLine("Ticker ATT not found!");
            }
            Console.WriteLine("Done! Press return to exit");
            Console.ReadLine();
        }
    }
}

App.config file for the Client Code

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <system.serviceModel>
        <client>
            <endpoint address="http://localhost:8080/QuickReturns/Exchange"
                binding="basicHttpBinding"
                contract="QuickReturns.StockTrading.ExchangeServiceClient. ITradeService">
            </endpoint>
        </client>
    </system.serviceModel>
</configuration>